diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
index 66d5db892..700f64963 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
@@ -1459,7 +1459,7 @@ class NonlinAttentionModule(nn.Module):
     """
 
     def __init__(
-            self, channels: int, ratio: int = 8,
+            self, channels: int, ratio: int = 2,
     ) -> None:
         super().__init__()